Ickowicz, Zack
Current rating: 1499
| Grand Prix Atlanta 2018 (modern) | starting rating: 1484 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 9 | Murphy, Gareth (1422) | Lost 0-2 | -191465 |
| 2modern | 420 | Hommy, Ori (1476) | Won 2-0 | +181483 |
| 3modern | 364 | Case, Adam (1525) | Lost 0-2 | -171466 |
| 4modern | 694 | McEnaney, Corey (1433) | Won 2-0 | +171483 |
| 5modern | 372 | Albright, Dan (1457) | Won 2-0 | +181501 |
| 6modern | 463 | Clark, James (1479) | Won 2-1 | +171518 |
| 7modern | 175 | Spasaro, Nathan (1431) | Lost 1-2 | -191499 |
| top | average opponent: 1460record: 4-3 | new rating: 1499 | ||
| Grand Prix Albuquerque 2016 (SOI limited) | starting rating: 1481 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 72 | Clausen, Hayes (1500) | Won 2-1 | +181499 |
| 2sealed | 111 | Pommer, Dylan (1485) | Won 2-1 | +181517 |
| 3sealed | 128 | Carrier, Jared (1599) | Lost 1-2 | -171500 |
| 4sealed | 332 | Reed, Aaron (1534) | Lost 0-2 | -171483 |
| 5sealed | 392 | Bruno, Sean (1450) | Won 2-0 | +171500 |
| 6sealed | 245 | Koenig, Jake (1586) | Lost 0-2 | -161484 |
| top | average opponent: 1526record: 3-3 | new rating: 1484 | ||
| Grand Prix Las Vegas 2015 (1) (MM2 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 113 | Klaes, Kevin (1448) | Lost 0-2 | -191481 |
| 2sealed | 272 | Haskins, Michael (1482) | Won 2-0 | +181499 |
| 3sealed | 220 | Van Essen, Andrew (1484) | Lost 1-2 | -181481 |
| top | average opponent: 1471record: 1-2 | new rating: 1481 | ||